What is Sn? Important knowledge about Sn

  1. Definition of Sn:

Sn is the chemical symbol for a substance known as Stannum, also commonly known as tin. The English name for this substance is Tin. The atomic mass of tin is 118.71, and its atomic weight is also 118.71. Tin molecules are constituted by Sn atoms bonded together. According to chemistry, Sn does not form ions under normal conditions.

  1. Properties of Sn:

2.1 Physical properties of Sn: Tin has a solid state at room temperature, with a silvery-white color. It has no odor and is neither acidic nor basic, so its PH value cannot be determined.

2.2 Chemical properties of Sn: Tin can react with acid and oxygen. However, it does not react with water at room temperature.

  1. Common chemical equations with Sn include:

Reaction with metal: Sn + 2HCl -> SnCl2 + H2

Reaction with acid: Sn + 4HNO3 -> Sn(NO3)4 + 2NO2 + 2H2O

Reaction with air: 4Sn + 5O2 -> 2SnO2

  1. Preparation of Sn:

4.1 Lab preparation of Sn: Tin is usually prepared in the lab through the process of dissolving tin ore in acid or base.

4.2 Industrial preparation of Sn: In industry, tin is prepared by melting tin ore (SnO2) in a coke container to produce pure tin.

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